Material and size Material: ABS Size: 16 x 21 x 10 mm (W x L x H); 0.63 x 0.83 x 0.39 inch A terminal strip with 25 jacks Key benefits Easy to fix breadboard jumpers and quick to use with a breadboard holder Suitable for a pi breadboard kit Holes are aligned consistently; each row and column is labeled with corresponding letters and numbers for easy pin insertion Compatibility and usage The solderless breadboard in the breadboard kit supports DIY projects Compatible with breadboard jumpers and breadboard power supply for DIY, testing, experiments, robotics, toys and games Handling and practicality The connectors provide a reliable grip You can leave your circuit on the breadboard if you do not want to transfer it to a perfboard or a PCB Use scenarios Prototyping microcontroller or Raspberry Pi projects using a pi breadboard kit Educational electronics work and classroom experiments, robotics, and STEM projects Quick DIY testing and tinkering of circuits for toys, gadgets, and hobby projects